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# XIRR

## Name

XIRR --

## Synopsis

    XIRR(values,dates[,guess])

## Description

XIRR calculates and returns the internal rate of return of an investment that has not necessarily periodic payments. This function is closely related to the net present value function (NPV and XNPV). The XIRR is the interest rate for a serie of cash flow where the XNPV is zero.

@values contains the serie of cash flow generated by the investment. @dates contains the dates of the payments. The first date describes the payment day of the initial payment and thus all the other dates should be after this date. The optional @guess is the initial value used in calculating the XIRR. You do not have to use that, it is only provided for the Excel compatibility.

This function is Excel compatible.

## Examples

Let us assume that the cells A1:A5 contain the numbers -6000, 2134, 1422, 1933, and 1422, and the cells B1:B5 contain the dates "1999-01-15", "1999-04-04", "1999-05-09", "2000-03-12", and "2000-05-1". Then

XIRR(A1:A5,B1:B5) returns 0.224838.

## See also

IRR, XNPV.

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